제출 #1278935

#제출 시각아이디문제언어결과실행 시간메모리
1278935SSKMFKnapsack (NOI18_knapsack)C++20
73 / 100
1082 ms1952 KiB
#include <bits/stdc++.h> using namespace std; deque < pair <int , int> > candidati[2001]; int maxim[2001] , temporar[2001]; int main () { ios :: sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL); int limita , optiuni; cin >> limita >> optiuni; for (int indice = 1 ; indice <= limita ; indice++) { maxim[indice] = -1; } while (optiuni--) { int valoare , greutate , __limita; cin >> valoare >> greutate >> __limita; for (int indice = 0 ; indice < greutate ; indice++) { candidati[indice].clear(); } for (int indice = 0 , __indice = 0 ; indice <= limita ; indice++) { if (!candidati[__indice].empty() && (indice - candidati[__indice].front().second) / greutate > __limita) { candidati[__indice].pop_front(); } temporar[indice] = max(maxim[indice] , candidati[__indice].empty() ? -1 : candidati[__indice].front().first + indice / greutate * valoare); if (maxim[indice] != -1) { pair <int , int> actual = {maxim[indice] - indice / greutate * valoare , indice}; while (!candidati[__indice].empty() && candidati[__indice].back().first <= actual.first) { candidati[__indice].pop_back(); } candidati[__indice].push_back(actual); } if (++__indice == greutate) { __indice = 0; } } for (int indice = 0 ; indice <= limita ; indice++) { maxim[indice] = temporar[indice]; } } int rezultat = 0; for (int indice = 1 ; indice <= limita ; indice++) { rezultat = max(rezultat , maxim[indice]); } cout << rezultat; return 0; }
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